DS8007_11 Datasheet, PDF (1/41 Pages) Maxim Integrated Products – Multiprotocol Dual Smart Card Interface 8kV (min) ESD Protection on Card Interfaces

19-5972; Rev 3; 7/11
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Multiprotocol Dual Smart Card Interface
General Description
The DS8007 multiprotocol dual smart card interface is a
low-cost, dual smart card reader interface supporting
all ISO 7816, EMV^®, and GSM11-11 requirements.
Through its 8-bit parallel bus and dedicated address
selects (AD3–AD0), the DS8007 can easily and directly
connect to the nonmultiplexed byte-wide bus of a
Maxim secure microcontroller. Optionally, the parallel
bus can be multiplexed to allow direct access to the
multiplexed bus of an 80C51-compatible microcon-
troller through MOVX memory addressing.
One integrated ISO 7816 UART is multiplexed among
the interfaces to allow high-speed automatic smart card
processing with each card-possessing, independent,
variable, baud-rate capability. The card interface is con-
trolled by internal sequencers that support automatic
activation and deactivation sequencing, handling all
actions required for T = 0, T = 1, and synchronous pro-
tocols. Emergency deactivation is also supported in
case of supply dropout. A third card is supported
through the auxiliary I/O. The same set of I/O can option-
ally be used as additional serial interface for the UART.
The DS8007 provides all electrical signals necessary to
interface with two smart cards. The integrated voltage
converter ensures full cross-compatibility between 1.8V/
3V/5V cards and a 1.8V/3V/5V environment, and allows
operation within a 2.7V to 6V supply voltage range.
Applications
Banking Applications (Point-of-Sale Terminals,
Debit/Credit Payment Terminals, PIN Pads,
Automated Teller Machines)
Telecommunications
Pay Television
Access Control
Ordering Information
PART
TEMP RANGE
SMART
CARDS
SUPPORTED
PIN-
PACKAGE
DS8007-ENG -40°C to +85°C 2 + auxiliary 48 LQFP
DS8007-ENG+ -40°C to +85°C 2 + auxiliary 48 LQFP
+Denotes a lead(Pb)-free/RoHS-compliant package.
EMV is a registered trademark of EMVCo LLC.
MAXQ is a registered trademark of Maxim Integrated Products, Inc.
Note: Some revisions of this device may incorporate devia-
tions from published specifications known as errata. Multiple
revisions of any device may be simultaneously available
through various sales channels. For information about device
errata, go to: www.maxim-ic.com/errata.
Features
♦ Integrated ISO 7816 UART Provides Complete
Interface/Control for Two Separate Smart Card
Devices
♦ 8kV (min) ESD Protection on Card Interfaces
♦ Internal IC Card Supply Voltage Generation
5.0V ±5%, 65mA (max)
3.0V ±8%, 50mA (max)
1.8V ±10%, 30mA (max)
♦ Automatic Card Activation, Deactivation, and Data
Communication Controlled by Dedicated Internal
Sequencer
♦ Host Interface Through an 8-Bit Parallel Bus (User-
Selectable Multiplexed or Nonmultiplexed Modes)
♦ Chip Select and Three-State Bus Allow Multiple
Devices (Card Readers and Memories) on Bus
♦ 8-Character Receive FIFO with Optional
Programmable Depth/Threshold
♦ I/O Interface Pin to External ISO 7816 UART for
Auxiliary Interface
♦ Separate Card Clock Generation (Up to 10MHz)
with 2x Frequency Doubling
♦ Selectable Card Clock Stop High, Stop Low, or
Internally Generated 1.25MHz (for Card Power-
Down)
♦ EMV-Certified Reference Design and Evaluation
Kit Available (DS8007-KIT)
Pin Configuration
RSTOUT 1
I/OAUX 2
I/OA 3
C8A 4
PRESA 5
C4A 6
GNDA 7
CLKA 8
VCCA 9
RSTA 10
I/OB 11
C8B 12
DS8007
36 RD
35 D7
34 D6
33 D5
32 D4
31 D3
30 D2
29 D1
28 D0
27 VDD
26 CPA2
25 AGND
LQFP
Typical Operating Circuit appears at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.